AJB540

I'm thinking that I'm going to get a new block from MMR at some point, and was wondering what the benefits of swapping a 5.4 in would be. I'm planning on throwing a Kenne Bell on as well if that makes a difference.

Edit: The more I think about it, the more I think that there might be a space issue. Has anyone had any experience with this at all?

liljojo4711

no space issue. u gain a lot of torque. theres like 10093284097102893754 threads on this.

AJB540

I wasn't sure if the Kenne Bell would cause a space issue though. I searched, and found a few topics, but none really talked about the power gains I should expect.

96meangreengt

Would the f series sohc be a good canidate for this swap? what all would have to be done to put this swap together

school boy

if your thinking of going kb on a 5.4, check out a lightning forum. great info to be had their

Hangwire

Use the search function too, there have been threads on this in the past. And the general consensus is that if money matters its not worth it.

MU71L4710N

eh if he's already replacing the shortblock and going to KB it there really isnt any hidden costs. doesnt have to buy the new manifold, he can reuse his pi heads and cams, etc...

you will most likely need to get a cowl hood tho with a top mount blower. guy on another forum did the lightning swap (eaton) and he had to notch his hood a little bit underneath but was able to keep the stock hood. you may or may not be so lucky and i cant tell you for sure cuz i havent seen a kb'd 5.4 swap yet.

AJB540

That was my train of thought. The 5.4 block is a couple hundred bucks more than the 4.6, so its not a huge deal. I have a cervinis stalkerhood, I wonder if it will fit under that fine...

Edit: note to self: typing on phone leads to tons of typos

nickmckinney

I built the blown 5.4 in this car. There is no hood that can fit it completely, take a look at how tall this hood is and it still needed to be cut. I am not a fan of this swap to be honest unless you can really open your wallet wide, and few are willing to do that. Long tube headers are over $1K and are mandatory IMHO.

Hangwire

What kind of SC? How much boost? What kind of internals? What kind of LTs? Most importantly how much torque!